Our Team

Our Team at Oasis Psychiatric Day Program

At the core of Oasis PDP’s exceptional service is our team – a diverse group of highly qualified and compassionate professionals dedicated to providing the best possible care. Our team comprises:

1. Board-Certified Psychiatrists: Our psychiatrists are not only medically trained to diagnose and treat mental health disorders but are also experts in managing complex psychiatric conditions. Their extensive training and experience in Psychopharmacology ensure that each client receives the most effective medication regimen tailored to their specific needs.

2. Psychologists/ Social workers: Our clinicians are skilled in assessing, diagnosing, and treating a wide range of mental health issues. They bring a wealth of knowledge in various therapeutic techniques, ensuring that each client receives care that is grounded in the latest psychological research and practices.

3. Therapists: Our therapists are the cornerstone of our day-to-day client interactions. They are trained in a variety of therapeutic modalities, allowing them to adapt their approach to suit the individual needs of each client. Whether it’s through individual therapy, group sessions, or family meetings, our therapists are committed to providing empathetic, effective, and personalized care.

Together, our team at Oasis PDP is united in our mission to provide compassionate, superior quality, and comprehensive psychiatric care. Our multidisciplinary approach means that clients benefit from a broad spectrum of perspectives and expertise, all working collaboratively to support their journey towards mental wellness.

Our commitment extends beyond just treating symptoms; we strive to empower each individual with the skills and knowledge needed for long-term management of their mental health. This holistic approach is why we place a strong emphasis on group therapies and skill-building, alongside Psychopharmacology management and individual support.

For individuals aged 18 and above, seeking a path to recovery and resilience, Oasis PDP offers a supportive and nurturing environment, underpinned by the expertise and dedication of our exceptional team. To learn more about how our team can assist you or to make a referral, please contact us at 781-980-7600 or visit our contact page. Let us be a part of your journey towards a healthier, happier life.

Nadolphia Andou, LCSW

Nadolphia is the Director of Operations and Clinical Services at Oasis Psychiatric Day Program. Nadolphia is a Licensed Clinical Social Worker with over 10 years’ experience working in clinical settings. Nadolphia has enormous compassion for people going through life's challenges and transitions and feels privileged to work with those who are seeking support. Nadolphia obtained her Masters in social work degree at Howard University in Washington, D.C. and is furthering her education and skills towards a Doctoral degree.

Nadolphia’s specialty is providing a safe and interactive environment in which to tackle difficult subjects such as, trauma, addiction, and serious mental illness. Nadolphia’s early work is with the individual adult, children, and their families, which inspired and informed her current skills. Nadolphia has managed the day-to-day operations of adult recovery treatment facilities and residential programs enabling her to continue her clinical work treating adult clients with co-occurring substance use and mental health disorders.

Nadolphia believes that we have within us the seeds of our own healing, but sometimes we get off course. Nadolphia’s experience has been that growth is not a straight line but occurs when we prepare the ground. Nadolphia’s skills are intended to facilitate your process, whatever that may be. In her office, you will be heard. To practice her own selfcare, Nadolphia enjoys reading, dancing, traveling the world, spending time with loved ones and cuddling with her two dogs.

Rebecca Hall, LICSW, MSW, MBA

Rebecca brings 15 years of experience providing behavioral health care in a variety of clinical settings. She is a licensed independent clinical social worker (LICSW) and received a Master in Social Work from Bridgewater State University and a Master in Business Administration, Healthcare Management from Fitchburg State University. Currently, Ms. Hall provides outpatient services to individuals, children/adolescents, and couples through Oasis outpatient services, and offers operational and clinical consultation and supervision for the Oasis Psychiatric Day Program. Previously, Ms. Hall has served as a forensic social worker, residential treatment unit director, mental health director, and quality improvement manager. She specializes in substance use, mood disorders, forensic services, and healthcare operations.

Erica Barbosa

Mental Health Clinician

Erica Barbosa was born in Fogo, Cape Verde, and came to Massachusetts at a young age. She graduated with a Bachelor’s in Psychology as well as a Master's in Forensic Psychology. Erica is currently in the Golden Key International Society, the International Honor Society in Psychology (Psi Chi), and the National Society of Leadership and Success. She has done volunteer work in Boston working with children who come from low-income families. Collaborating with Strong Women Strong Girls (SWSG) and Jumpstart (AmeriCorps), Erica assisted in after-school programs. Erica has a background in working as a behavioral therapist for the Newton School system and as a mental health counselor for a psychiatric and eating disorder clinic. She has also worked as a clinician in a men's substance use residential program. She strives to be a facilitator for change in our global community. In life and service, she resonates with this quote: “The purpose of life is not to be happy. It is to be useful, to be honorable, to be compassionate, to have it make some difference that you have lived and lived well” -Ralph Waldo Emerson.

What do you do for your mental health and well-being? I love to draw and read books, specifically focused on mythology. I also love to travel because I feel that immersing myself in different cultures and society is the best way to learn.

Fun Fact: I love spicy food, the spicier the better. I also love tropical fruit, especially passionfruit.

Dr. Mathews Thomas, MD


Dr. Thomas is dual Board Certified Psychiatrist in General Adult Psychiatry and Forensic Psychiatry by the American Board of Psychiatry & Neurology. Dr. Thomas has 20 plus years of experience working in field of psychiatry which includes working in in-patient units, partial hospital program and out-patient programs. He also works as an expert witness and independent medical examiner for the Committee of Public Counsel Services of Massachusetts where he provides second opinion on diagnosis and treatment of mental illness.

Dr. Thomas graduated from Shri. B.M. Patil Medical School in Bijapur, India and he did four years of psychiatric training at New Castle, United Kingdom.

Dr. Thomas is a graduate from Harvard Medical School where he completed Psychiatric Residency Training from Harvard South Shore Psychiatry Training Program. Dr. Thomas also completed fellowships in Psychoanalysis from Boston Psychoanalytic Institute and Forensic Psychiatry at the University of Massachusetts. He is ex clinical faculty at Harvard Medical School and currently a clinical faculty at Tufts University School of Medicine. He is member of American Psychiatry Association, Massachusetts Psychiatric Society, American Academy of Psychiatry & Law and Clinical TMS Society.